Crude il rose after the seizure of Libya's prime minister punctured confidence that its oil exports would return smoothly to normal.
The OPEC nudged up its 2014 global oil demand forecast by 1.0 mbd to reach 90.8 mbd
Libya's oil output has risen to 700,000 bpd, after falling at mid-year to its lowest since country's 2011 civil war as strikes blocked most oilfields and ports